OSWORD &02 is implemented (so you can set `TIME`).

2022-10-31 21:29:53 -04:00 · 2022-10-31 21:29:53 -04:00 · 5431840b59
parent e969d2cceb
commit 5431840b59
2 changed files with 15 additions and 2 deletions
--- a/applecorn.po
+++ b/applecorn.po
--- a/auxmem.bytwrd.s
+++ b/auxmem.bytwrd.s
@ -327,9 +327,22 @@ WORD01       PHP                          ; Disable interrupts
             PLP                          ; Restore interrupt state
             RTS

-WORD04
+WORD02       PHP                          ; Disable interrupts
+             SEI
+             >>>   WRTMAIN
+:WORD02LP    LDA   (OSCTRL),Y             ; Read from buffer
+:WORD02LP    STA   SYSCLOCK,Y             ; Store to sys clock in main mem
+             INY
+             CPY   #$05
+             BCC   :WORD02LP
+             >>>   WRTAUX
+             PLP                          ; Restore interrupt state
+             RTS
+
 WORD03
-WORD02       RTS                          ; Dummy, do nothing
+WORD04
+             RTS
+

 * OSWORD &05 - Read I/O memory
 * OSWORD &06 - Write I/O memory